Question
Who invented the mouse of a
computer?Solution
The computer mouse was invented in 1963 by Douglas Engelbart, an engineer and computer scientist working at the Stanford Research Institute. The first mouse was a wooden shell with two metal wheels on the bottom, which were used to track movement on a surface.
How much time does a Geostationary satellite take to complete one orbit, at the height of 35790 km?
I threw a ball horizontally on the road and after covering certain distance, the ball stopped due to
Speed of sound in air is unaffected by change in :
When two charged bodies are properly connected but do not exchange electric current, it indicates that they have the same _____.
The Dimensions of “G” (Universal Gravitation Constant) is:
Which device uses ultrasonic waves for getting images of internal organs of human body?
Sound and light waves both have ___________ .
Which of the following Instrument is used to measure humidity?
Which of the following is a vector quantity?
‘Therm' is the unit of –
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